diff options
| author | Guo Chao <yan@linux.vnet.ibm.com> | 2012-11-02 18:33:21 +0800 |
|---|---|---|
| committer | Marcelo Tosatti <mtosatti@redhat.com> | 2012-11-13 22:14:28 -0200 |
| commit | 18595411a7146330ec19adf0b9db8e6736c84a4e (patch) | |
| tree | e92309d75edc34d48830b5d7712876a03dbde5c0 | |
| parent | f026399fc90655ac444c62139aa4f8a02e1c795a (diff) | |
| download | linux-18595411a7146330ec19adf0b9db8e6736c84a4e.tar.gz linux-18595411a7146330ec19adf0b9db8e6736c84a4e.tar.bz2 linux-18595411a7146330ec19adf0b9db8e6736c84a4e.zip | |
KVM: do not kfree error pointer
We should avoid kfree()ing error pointer in kvm_vcpu_ioctl() and
kvm_arch_vcpu_ioctl().
Signed-off-by: Guo Chao <yan@linux.vnet.ibm.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
| -rw-r--r-- | arch/x86/kvm/x86.c | 19 | ||||
| -rw-r--r-- | virt/kvm/kvm_main.c | 2 |
2 files changed, 8 insertions, 13 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 49fa1f0e59bd..40905ce6be0a 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -2689,14 +2689,11 @@ long kvm_arch_vcpu_ioctl(struct file *filp, break; } case KVM_SET_LAPIC: { - r = -EINVAL; if (!vcpu->arch.apic) goto out; u.lapic = memdup_user(argp, sizeof(*u.lapic)); - if (IS_ERR(u.lapic)) { - r = PTR_ERR(u.lapic); - goto out; - } + if (IS_ERR(u.lapic)) + return PTR_ERR(u.lapic); r = kvm_vcpu_ioctl_set_lapic(vcpu, u.lapic); if (r) @@ -2877,10 +2874,8 @@ long kvm_arch_vcpu_ioctl(struct file *filp, } case KVM_SET_XSAVE: { u.xsave = memdup_user(argp, sizeof(*u.xsave)); - if (IS_ERR(u.xsave)) { - r = PTR_ERR(u.xsave); - goto out; - } + if (IS_ERR(u.xsave)) + return PTR_ERR(u.xsave); r = kvm_vcpu_ioctl_x86_set_xsave(vcpu, u.xsave); break; @@ -2902,10 +2897,8 @@ long kvm_arch_vcpu_ioctl(struct file *filp, } case KVM_SET_XCRS: { u.xcrs = memdup_user(argp, sizeof(*u.xcrs)); - if (IS_ERR(u.xcrs)) { - r = PTR_ERR(u.xcrs); - goto out; - } + if (IS_ERR(u.xcrs)) + return PTR_ERR(u.xcrs); r = kvm_vcpu_ioctl_x86_set_xcrs(vcpu, u.xcrs); break; diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c index 2fb73191801f..316d76aa030d 100644 --- a/virt/kvm/kvm_main.c +++ b/virt/kvm/kvm_main.c @@ -1954,6 +1954,7 @@ out_free2: kvm_sregs = memdup_user(argp, sizeof(*kvm_sregs)); if (IS_ERR(kvm_sregs)) { r = PTR_ERR(kvm_sregs); + kvm_sregs = NULL; goto out; } r = kvm_arch_vcpu_ioctl_set_sregs(vcpu, kvm_sregs); @@ -2054,6 +2055,7 @@ out_free2: fpu = memdup_user(argp, sizeof(*fpu)); if (IS_ERR(fpu)) { r = PTR_ERR(fpu); + fpu = NULL; goto out; } r = kvm_arch_vcpu_ioctl_set_fpu(vcpu, fpu); |